Assembly and Test of a Support Structure for 3.6 m Long Nb3Sn Racetrack Coils

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The LHC Accelerator Research Program (LARP) is currently developing 4 m long Nb{sub 3}Sn quadrupole magnets for a possible upgrade of the LHC Interaction Regions (IR). In order to provide a reliable test bed for the fabrication and test of long Nb{sub 3}Sn coils, LARP has started the development of the long racetrack magnet LRS01. The magnet is composed of two 3.6 m long racetrack coils contained in a support structure based on an aluminum shell pre-tensioned with water-pressurized bladders and interference keys. For the phase-one test of the assembly procedure and loading operation, the structure was pre-stressed at room ... continued below

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Ambrosio, G.; Anerella, M.; Caspi, S.; Cheng, D.W.; Felice, H.; Hafalia, A.R. et al. June 1, 2008.

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The LHC Accelerator Research Program (LARP) is currently developing 4 m long Nb{sub 3}Sn quadrupole magnets for a possible upgrade of the LHC Interaction Regions (IR). In order to provide a reliable test bed for the fabrication and test of long Nb{sub 3}Sn coils, LARP has started the development of the long racetrack magnet LRS01. The magnet is composed of two 3.6 m long racetrack coils contained in a support structure based on an aluminum shell pre-tensioned with water-pressurized bladders and interference keys. For the phase-one test of the assembly procedure and loading operation, the structure was pre-stressed at room temperature and cooled down to 77 K with instrumented, solid aluminum 'dummy coils'. Mechanical behavior and stress homogeneity were monitored with strain gauges mounted on the shell and the dummy coils. The dummy coils were replaced with reacted and impregnated Nb{sub 3}Sn coils in a second assembly procedure, followed by cool-down to 4.5 K and powered magnet test. This paper report on the assembly and loading procedures of the support structure as well as the comparison between strain gauge data and 3D model predictions.

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  • Journal Name: IEEE Transactions on Applied Superconductivity; Journal Volume: 18; Journal Issue: 2; Related Information: Journal Publication Date: 06/2008

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  • Report No.: LBNL-1006E
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.1109/TASC.2008.922277 | External Link
  • Office of Scientific & Technical Information Report Number: 940574
  • Archival Resource Key: ark:/67531/metadc898020

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 1, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 28, 2016, 7:06 p.m.

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Ambrosio, G.; Anerella, M.; Caspi, S.; Cheng, D.W.; Felice, H.; Hafalia, A.R. et al. Assembly and Test of a Support Structure for 3.6 m Long Nb3Sn Racetrack Coils, article, June 1, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc898020/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.